Hearing Scenes: A Neuromagnetic Signature of Auditory Source and Reverberant Space Separation.

ABSTRACT: Perceiving the geometry of surrounding space is a multisensory process, crucial to contextualizing object perception and guiding navigation behavior. Humans can make judgments about surrounding spaces from reverberation cues, caused by sounds reflecting off multiple interior surfaces. However, it remains unclear how the brain represents reverberant spaces separately from sound sources. Here, we report separable neural signatures of auditory space and source perception during magnetoencephalography (MEG) recording as subjects listened to brief sounds convolved with monaural room impulse responses (RIRs). The decoding signature of sound sources began at 57 ms after stimulus onset and peaked at 130 ms, while space decoding started at 138 ms and peaked at 386 ms. Importantly, these neuromagnet

SUBMITTER: Teng S 

PROVIDER: S-EPMC5394928 | biostudies-literature | 2017 Jan-Feb

REPOSITORIES: biostudies-literature